Adirondack Combustion Technologies

#1 Best Rated NY Domestic Hot Water Heater Service & Repair

Proudly serving New York, Vermont, and Massachusetts

Patterson Kelley Hidra

28 Years of Experience Designing and Building Hot Water Heaters

Adirondack Combustion Technologies is the leading hot water heating solutions provider in the North Country region. We have been serving Upstate NY, Vermont, and Eastern Massachusetts with reliable hot water services for over 28 years.

We can help you find the best industrial hot water heater solution.

Factory-Trained Hot Water Technicians | Decades of Experience

Proven Industrial Combustion Solutions & Service

Industry Experts

We employ an experienced team of engineers who can provide hot water system design and installation expertise for applications of any size. We also employ an expert team of factory-trained technicians. We are here to support all of the equipment we supply with regular maintenance and 24/7 emergency service so you can minimize downtime.

Industry-Leading Solutions

We only work with the best heating solutions providers because we understand that quality and reliability are of utmost importance. We currently supply hot water solutions from our partners Patterson-Kelley, Precision Boilers, and Maxi Therm.

Patterson-Kelley has over 140 years of experience building hot water heaters for the most demanding applications. PK water heaters are extremely compact - each model is designed to fit through a standard commercial doorway so installation is easier. They are highly efficient with high heat transfer ratios and fast response to load requirements.

Precision Boilers has over 70 years of experience in the heating industry. The company currently offers electric and fuel-fired water heaters for the most demanding applications. All of these hot water heaters are lined with NSF-61 compliant Precision Seal or Aluminum Silicate Cement for excellent service life. They are simple to service, easy to install, and highly efficient.

Maxi Therm Heat Exchangers

Maxi Therm specializes in highly efficient steam water heaters. Every Maxi Therm steam water heater is built to your custom requirements for your specific application. The popular Vertical Flooding Feed Forward (VFFF) model is an instantaneous steam water heater with a differential of just ±4°F and a range of 5 psig to 40 psig.


What is a Water Heater?

A water heater is a common device in nearly every single residential and commercial building. In the most basic sense, a water heater is a piece of equipment that heats your tap water for household use in cleaning, cooking, and bathing.

Water Heater Benefits and Applications

Adirondack Combustion Technologies has decades of experience providing residential and commercial hot water equipment in Vermont and New York. We have worked with facilities of all sizes to design and install hot water systems for all levels of demand.

Our engineering team is well-versed in hot water system requirements. If you provide us with your specifications, we can create a system design that will meet and exceed your needs. We can also provide expert service after your equipment is installed.

Our factory-trained technicians are certified to work on all the equipment we supply. We can provide water heater maintenance and repair services for the life of your equipment. Our teams are also available for 24/7 emergency service in the North Country region.

Typical end users

  • Hospitals
  • Commercial Kitchens
  • Apartment Buildings
  • Multi-Unit Housing Facilities
  • Universities & Schools
  • Hotels
  • Factories & Production Plants
  • Prisons
  • Military Facilities
  • Government Facilities

Let's work together on your next project.

Types of Water Heaters – Heating Elements

When we talk about direct and indirect water heaters, we are talking about the way in which the water inside the unit is actually heated. A direct water heater is generally more efficient because it uses combustion to heat water directly. An indirect water heater requires that the boiler be running whenever hot water is needed. Direct water heaters are also more responsive and provide faster heat up time.

Direct Water Heater

In a direct water heater, a heat source is built into the heater which generates heat through combustion. Various fuels can be used depending on the specific water heater – natural gas, propane, and electricity are all common fuels. These fuels are used to power gas burners or electric heating rods which transfer heat into the water.

Indirect Water Heater

An indirect water heater has no built-in heat source. Instead, indirect water heaters rely on boilers to generate the heat necessary to raise the temperature of your tap water. In these applications, the boiler heats non-potable water which is then used by the indirect water heater to raise the temperature of potable tap water on-demand.

Types of Water Heaters – Water Supply

Tank and tankless water heaters describe how hot water is stored once it is heated. Tankless water heaters are generally more energy efficient with a longer life span. However, tankless water heaters are really only suitable for low-demand applications where just a couple people need hot water at once. A tank water heater is slightly less efficient but much better suited to high-demand applications where hot water is needed on a large scale.


A tank water heater typically resembles a large cylinder – the cylinder is the water tank which is used to store heated water. In a storage tank water heater, water is held in the tank at a high temperature until it is needed. Many different tank sizes are available depending on the size of the building and the hot water demand.


A tankless water heater has no hot water storage tank. These are also called instant water heaters or on-demand water heaters. These water heaters provide hot water as it is needed using a coil system, typically powered by natural gas, propane, or oil.

Find out which water heater is right for your application.

Adirondack Combustion Water Heater Solutions

At Adirondack Combustion Technologies, we take great pride in our partners. We provide only the best hot water heating solutions from proven industry leaders. We are proud to supply water heaters from Patterson-Kelley, Precision Boilers, and Maxi Therm. These hot water solutions are ASME and CAS Certified and NSF Compliant.

Our hot water heater solutions are generally well-suited to high demand applications. We will work with you from day one to design a system that is right for your needs. Our engineers are experts in the field with decades of design experience in a wide range of applications.

With over 28 years of experience serving the North Country with hot water solutions, we have the knowledge you need to ensure success in your next project. Contact our engineering team today to discuss your hot water system design.

Let's find the right industrial water heater for your project.

Contact us to ask a question or begin a conversation.